Papers by Keyword: Static Coefficient of Friction

Abstract: Tribometer is an instrument that offers precise and repeatable wear/friction measurement of a surface. The coefficient of friction is a dimensionless scalar value which describes the ratio of the force of friction between two bodies. It is an empirical measurement; it has to be measured experimentally, and cannot be found through calculations. This tribometer measures coefficient of friction between any two materials in dry test scenario using flat bed approach; moreover it measures both kinetic and dynamic coefficient of friction. As emphasized in the title it is first of its kind being fabricated in Pakistan, which is a huge achievement considering the fact that not much research work is being done in this field in Pakistan. This tribometer is designed to prioritize accuracy and manufacturing cost.

Abstract: Wastes such as saw dust (Pinus Radiata) and milk bottles (High Density Polyethylene - HDPE) are available in abundance. Composite decking materials, consisting of different weight percentages (60%, 70% and 80%) of saw dust and recovered HDPE, were extruded using a co-rotating, conical, twin screw extruder with a decking-profile die. The extruded decking materials were evaluated on their surface finish and shape conformance. The extruded decking materials were tested in accordance with the appropriate ASTM standards to determine their water absorption, thickness swell, static coefficient of friction, weathering and flexural (four-point bending) properties after they met the required quality ratings.